Glucosamine is an amino sugar that was identified in 1876. It is found in healthy cartilage. Glucosamine is made naturally in the body. Glucosamine is a naturally occurring substance found in the fluid around our joints. It is naturally present in animal bones, bone marrow, shellfish and fungi. Glucosamine plays a vital role in building cartilage and is commonly consumed as a supplement by people with arthritis, especially osteoarthritis.According to the National Center for Complementary and Alternative Therapy, a 2007 National Health Interview survey found that 17.7% of adults in the USA regularly took some type of dietary supplement. Of those people, 19.9% took glucosamine, the second most popular dietary supplement after fish oil/omega 3/DHA (37.4%).
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